Most common queries about 20 periodic table facts:
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I need 20 interesting facts about the periodic table of elements before friday?
What 20 facts about an element can you find using the periodic table?
My chemistry teacher told us today in class that we can find 20 facts about each element using the periodic table. I'm a little confused, can someone give an example and tell me how to find them?Can someone explain the periodic table?
I have learnt the periods tell you how many electron shells the atoms have, but the info I am looking at -GCSE Bitesize) also tells you that the group number will tell you how many electrons are in the outer shell. But this isn't true for all the elements is it? I can't understand why the metals in the middle of the table are left out in bitesize stuff and the periods from the left and right come together as 1,2,3,4,5,6,7 then group 0 the noble gasses, wherease other tables call group 0, group 8/V111. Whereas on other periodic tables it goes from 1-18 including all the middle ones . But it does not imply the ones on the right have 18 electrons in their outer shell. So why are we told this? Seeing as outer shells can apparently hold up to 72 electrons are there any on the table that actually do? Is there a way of knowing looking at a periodic table, with the atomic and mass numbers the atomic structure of all the elements, or is it just a handy way of working out the first 20 or so, excluding helium? Not to mention the fact that on some tables Hydrogen seems to be floating in the middle, in others its on the left .????20 Facts About Bismuth?
20 Facts about the element Bismuth, for a HS Chemistry ProjectUse a periodic table to determine the atomic number of chlorine.?
Use a periodic table to determine the atomic number of chlorine. two isotopes of chlorine exist with mass numbers 35 and 37. how many neutrons are present in each isotop.
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